Edge-setter.



PATENTED JULY 28, 1903.

E. I. WILLIAMSON.

EDGE SEITER. APPLICATION FILED MAY 5. 1903.

2 SHEETS-SHEET 1.

H0 MODBIM Irk/EVITEJP j yhisflf'. I

WITNESSES.- Q i om-u'mo WASHINGTON a PATENTED JULY 28, 1903.

E. I. WILLIAMSON.

EDGE SETTER.

APPLICATION FILED MAY 5, 1903.

2 SHEETS-SHEET N0 MODEL.

raitenteaa'ui 2S, 1902.

EDWARD I. WILLiAMSON, OF WEY oUTH, MASSACHUSETTS, ASSIGNOR or ONE-HALF TO FRANCIS B. WKES, OF WEYMOUTH, MASSACHUSETTS.

EDGE-SETTER.

SPECIFIGATIONforming part of Letters Patent N 0. 734,789, dated July 28, 1903.

- Application filed May 5, 1903. Serial No. 155,767. (No model.)

To aZZ whom it may concern:

Be it known that-I, EDWARD 1. WILLIAM- SON, a citizen of the United States, residing in Weymouth, in the county of Norfolk and 5 State of Massachusetts,- have invented a new and useful Improvement in Edge-Setters, of which the following is a Specification.

This invention relates to a new and improved construction, the principal object of IO which is to provide for the application and employment of heat generated by electricity, and thus do away with the ordinary methods of heating the edgesetting tools.

The nature of the invention is fully describedbelow and illustrated in' the accompanying drawings, in which- Figure 1 is a front elevation of my improved edge-setter. Fig. 2 is a side elevation ofthe same. Fig. 3 is a rear elevation of the tool-holding plate and the cup-shaped case rigid therewith containing an electrical coil. Fig. 4 is acentral vertical section of the same.

Similar letters of referenc'eindicate corresponding parts.

(1- represents a standard Supporting a frame I), which provides bearings for the driving-' shaft 0, on which there is mounted an ordinary pulley d. The outer end of the Shaft is provided with a cam e, and surrounding this cam is the eccentric ring f, integral with the rod g, pivotally connected at .g, Fig. 1, with the radial bar 71, which is rigid with the cupshaped case It. This case is hollow on its rear side to provide a chamber for an electrical coil Z, which is suitably embedded in enamel or similar material, connected with the source of electricity by suitable wires Z. This case' is mounted on a stud m and is provided with an integral hub 70', which extends 40 to the frame b. On the same stud'm is mounted the tool-holding plate a, which is provided with a spring 0, one end of which is fast at p tothe plate, while the other end is provided with a locking-pin r, which, in

.45 in connection withja spiral spring .9, held on the stud m against the plate a by a nut 1,

holds the plate a and case It locked together.

(See dotted lines in Figrtl.) The plate at is provided with the ordinary tool-holding studs v, each of which is adapted to support a pair .of tools to, not new in this invention.

In this device all provision for heating other than that for accommodating the electrical coil Z is done away with. When motion is imparted to the pulley d, the shaft 0, by means of the cam e, cam rod g, and arm it, imparts reciprocating rotative movement to the case 7t and by means of thelocking mechanism to the tool-holding plate wand thus causes the tool-holders andtools to be vibrated as the toolsset against the edges of soles in the manner well known in the art. During this operation the tools are heated efficient ly by means of the coil Z, (the case 70, plate n, and other intermediate parts being of metal and the adjacent portions of the plate and case being held in close contact,) and thus the objections raised by insurance com panies and others against edge-setters heated by naphtha orotheroilsoreven gasareobviated. I prefer to apply two tool-holding studs to the plate, as it is convenient to have one being heated while another is in use.

6f course the opposite end of the shaft and frame may be provided with a similar mechanism to that described above.

Having thus fully described my invention, what I claim, and desire to secure by Lett rs Patent, is

1. The herein-describedimproved edge-set- 8o ter, comprising the frame; the driving-shaft; the metallic case 70 containing an electrical coil for heating purposes; the metallic tool- 'holding plate n; a Stud upon which said plate and case are mounted; means for holdingthe said case and plate in contact; suitable toolholding studs extending from said plate; and mechanism intermediate of the case and driving shaft whereby reciprocating rotative movement is applied to said case, Substan- 9o tially asand for the purpose set forth.

2. The herein-describedimprovededge-setter, comprising the frame; the driving-shaft; the metallic case 70 containing an electrical coil for heating purposes; the radial bar it extending from said case the cam-rod g eccentrically connected at one end with the drivin g-shaft and pivotally connected at the other end with the radial bar; the metallic toolholding plate at; a stud on which said plate and case are mounted; a spring supported by the stud and holding the adjacent faces of said plate and case in contact; a boltloekiug name to this specification in the presence of the plate and. ease together whereby the rotwo subscribing witnesses. tative movement of one is imparted to the other; and suitable tool-holding studs sup- EDWARD WILLIAMSON- 5 ported bysaid plates, substantially as and for l Witnesses:

the purpose described. EE%RY W. WILLIAMS,

. B. EMERY.

In testimony whereof I have signed my 

